165045236433623 has 8 divisors (see below), whose sum is σ = 203132598687648. Its totient is φ = 130585242013344.

The previous prime is 165045236433613. The next prime is 165045236433641. The reversal of 165045236433623 is 326334632540561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165045236433623 - 2²² = 165045232239319 is a prime.

It is a super-2 number, since 2×165045236433623² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165045236433613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906841958336 + ... + 906841958517.

It is an arithmetic number, because the mean of its divisors is an integer number (25391574835956).

Almost surely, 2^{165045236433623} is an apocalyptic number.

165045236433623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

165045236433623 is a deficient number, since it is larger than the sum of its proper divisors (38087362254025).

165045236433623 is a wasteful number, since it uses less digits than its factorization.

165045236433623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813683916873.

The product of its (nonzero) digits is 27993600, while the sum is 53.

The spelling of 165045236433623 in words is "one hundred sixty-five trillion, forty-five billion, two hundred thirty-six million, four hundred thirty-three thousand, six hundred twenty-three".